fix: fixed BigInt sent as json

src/request-base.js

@@ -666,9 +666,12 @@ RequestBase.prototype.send = function (data) {
  // merge
  if (isObject_ && isObject(this._data)) {
  for (const key in data) {
+ if (typeof data[key] == "bigint") throw new Error("Cannot serialize BigInt value to json");
  if (hasOwn(data, key)) this._data[key] = data[key];
  }
- } else if (typeof data === 'string') {
+ }
+ else if (typeof data === 'bigint') throw new Error("Cannot send value of type BigInt");
+ else if (typeof data === 'string') {
  // default to x-www-form-urlencoded
  if (!type) this.type('form');
  type = this._header['content-type'];

test/json.js

@@ -119,6 +119,32 @@ describe('req.send(Object) as "json"', function () {
  });
  });
 
+ it('should error for BigInt object', (done) => {
+ try {
+ request
+ .post(`${uri}/echo`)
+ .type('json')
+ .send({number: 1n})
+ throw new Error('Should have thrown error for object with BigInt')
+ } catch (error) {
+ assert.strictEqual(error.message, 'Cannot serialize BigInt value to json');
+ }
+ done();
+ });
+
+ it('should error for BigInt primitive', (done) => {
+ try {
+ request
+ .post(`${uri}/echo`)
+ .type('json')
+ .send(1n)
+ throw new Error('Should have thrown error for BigInt primitive')
+ } catch (error) {
+ assert.strictEqual(error.message, 'Cannot send value of type BigInt');
+ }
+ done();
+ });
+
  describe('when called several times', () => {
  it('should merge the objects', (done) => {
  request